Active Suspension Hydraulic Interface for Flexible Packaging

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Solution Overview

Problem

Active chassis systems for vehicles face challenges in adapting to varying installation space requirements due to the fixed spatial arrangement of the motor-pump group and consumer components, which often necessitates adjustments to the hydraulic system.

Innovation Solution

A hydraulic system design that includes a motor-pump group with a pump housing featuring a fastening section for external component attachment, integrated fluid interfaces, and coupling means such as O-rings or coupling adapters to create a fluid-tight connection with the consumer, allowing for flexible attachment and reduced installation space constraints.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the motor-pump group and consumer are arranged in a fixed spatial configuration, then the hydraulic system maintains structural stability, but the system cannot be easily adapted to different installation space requirements

Engineering Contradiction:
Improveadaptability to different installation spacesVSAvoidcomplexity of hydraulic system configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The hydraulic system is divided into separable components: a motor-pump group and a consumer unit, each with standardized fastening sections. This segmentation allows the components to be independently positioned and connected via coupling means, enabling flexible adaptation to different installation spaces without requiring complex custom configurations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastening sections are designed with universal coupling interfaces that can accommodate different spatial arrangements. The standardized fluid interfaces and coupling means enable the same motor-pump group and consumer configuration to be universally applied across various installation scenarios, reducing system complexity while improving adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If the motor-pump group is located in close proximity to the consumer, then hydraulic efficiency is improved, but space constraints prevent optimal positioning

Engineering Contradiction:
Improvehydraulic efficiencyVSAvoidinstallation space availability
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The system employs dynamic positioning capability through the coupling means, allowing the motor-pump group and consumer to be positioned optimally based on available space while maintaining hydraulic efficiency. The coupling adapters enable the components to be arranged in different configurations (side-by-side, stacked, or distributed) depending on spatial constraints, thus preserving productivity across various installation scenarios.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If custom adjustments are made to the hydraulic system for different installation spaces, then spatial requirements are met, but the adaptation process requires significant effort and time

Engineering Contradiction:
Improveadaptability to different installation spacesVSAvoidtime required for system adaptation
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The fastening sections and coupling means are pre-configured with standardized interfaces and fluid connections during manufacturing. This preliminary preparation eliminates the need for custom adjustments during installation, allowing the hydraulic system to be quickly adapted to different installation spaces by simply repositioning the pre-configured components and attaching them via the standardized coupling interfaces.

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables the hydraulic system to be easily adapted to different installation spaces with minimal effort, ensuring efficient hydraulic fluid flow and mechanical stability while maintaining a compact and flexible configuration.

Implementation Method 1

The motor-pump group comprises a hydraulic pump and an electric motor

Methodology Applied
Scientific EffectHydraulic pump: Pump

Implementation Method 2

an electric motor, in particular an electric motor generator, which are firmly connected to one another

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 3

coupling means such as O-rings or coupling adapters to create a fluid-tight connection with the consumer

Methodology Applied
Scientific EffectSealing:

Data Source

PatentEP4442475A1Hydraulic construction kit
Publication Date: 2024.10.09 RAPA AUTOMOTIVE GMBH & CO KG
  • EP4442475A1 patent drawingFigure 1
  • EP4442475A1 patent drawingFigure 2
  • EP4442475A1 patent drawingFigure 3~4

AI summary

The invention relates to a hydraulic system for an active suspension, comprising - a motor-pump group (20) with a pump housing (22a) with a mounting section (23) with an integrated fluid interface with first and second fluid openings (24), and - a consumer (2) with a housing with a corresponding mounting section (3) and corresponding fluid interface, wherein the consumer can be attached to the pump housing in such a way that the fluid openings (4, 24) of both are opposite each other.